gecko/gfx/layers/ipc/SharedPlanarYCbCrImage.h

129 lines
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <stdint.h> // for uint8_t, uint32_t
#include "ImageContainer.h" // for PlanarYCbCrImage, etc
#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/ipc/Shmem.h" // for Shmem
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsDebug.h" // for NS_WARNING
#include "nsTraceRefcnt.h" // for MOZ_COUNT_CTOR
class gfxASurface;
#ifndef MOZILLA_LAYERS_DeprecatedSharedPlanarYCbCrImage_H
#define MOZILLA_LAYERS_DeprecatedSharedPlanarYCbCrImage_H
namespace mozilla {
namespace layers {
class BufferTextureClient;
class ImageClient;
class ISurfaceAllocator;
class SurfaceDescriptor;
class TextureClient;
// XXX - This class will be removed along with DeprecatedImageClient
class DeprecatedSharedPlanarYCbCrImage : public PlanarYCbCrImage
{
public:
DeprecatedSharedPlanarYCbCrImage(ISurfaceAllocator* aAllocator)
: PlanarYCbCrImage(nullptr)
, mSurfaceAllocator(aAllocator), mAllocated(false)
{
MOZ_COUNT_CTOR(DeprecatedSharedPlanarYCbCrImage);
}
~DeprecatedSharedPlanarYCbCrImage();
virtual DeprecatedSharedPlanarYCbCrImage* AsDeprecatedSharedPlanarYCbCrImage() MOZ_OVERRIDE
{
return this;
}
virtual already_AddRefed<gfxASurface> GetAsSurface() MOZ_OVERRIDE
{
if (!mAllocated) {
NS_WARNING("Can't get as surface");
return nullptr;
}
return PlanarYCbCrImage::GetAsSurface();
}
virtual void SetData(const PlanarYCbCrImage::Data& aData) MOZ_OVERRIDE;
virtual void SetDataNoCopy(const Data &aData) MOZ_OVERRIDE;
virtual bool Allocate(PlanarYCbCrImage::Data& aData);
virtual uint8_t* AllocateBuffer(uint32_t aSize) MOZ_OVERRIDE;
// needs to be overriden because the parent class sets mBuffer which we
// do not want to happen.
uint8_t* AllocateAndGetNewBuffer(uint32_t aSize) MOZ_OVERRIDE;
virtual bool IsValid() MOZ_OVERRIDE {
return mAllocated;
}
/**
* Setup the Surface descriptor to contain this image's shmem, while keeping
* ownership of the shmem.
* if the operation succeeds, return true and AddRef this DeprecatedSharedPlanarYCbCrImage.
*/
bool ToSurfaceDescriptor(SurfaceDescriptor& aResult);
/**
* Setup the Surface descriptor to contain this image's shmem, and loose
* ownership of the shmem.
* if the operation succeeds, return true (and does _not_ AddRef this
* DeprecatedSharedPlanarYCbCrImage).
*/
bool DropToSurfaceDescriptor(SurfaceDescriptor& aResult);
/**
* Returns a DeprecatedSharedPlanarYCbCrImage* iff the descriptor was initialized with
* ToSurfaceDescriptor.
*/
static DeprecatedSharedPlanarYCbCrImage* FromSurfaceDescriptor(const SurfaceDescriptor& aDesc);
private:
ipc::Shmem mShmem;
ISurfaceAllocator* mSurfaceAllocator;
bool mAllocated;
};
class SharedPlanarYCbCrImage : public PlanarYCbCrImage
, public ISharedImage
{
public:
SharedPlanarYCbCrImage(ImageClient* aCompositable);
~SharedPlanarYCbCrImage();
virtual ISharedImage* AsSharedImage() MOZ_OVERRIDE { return this; }
virtual TextureClient* GetTextureClient() MOZ_OVERRIDE;
virtual uint8_t* GetBuffer() MOZ_OVERRIDE;
virtual already_AddRefed<gfxASurface> GetAsSurface() MOZ_OVERRIDE;
virtual void SetData(const PlanarYCbCrImage::Data& aData) MOZ_OVERRIDE;
virtual void SetDataNoCopy(const Data &aData) MOZ_OVERRIDE;
virtual bool Allocate(PlanarYCbCrImage::Data& aData);
virtual uint8_t* AllocateBuffer(uint32_t aSize) MOZ_OVERRIDE;
// needs to be overriden because the parent class sets mBuffer which we
// do not want to happen.
virtual uint8_t* AllocateAndGetNewBuffer(uint32_t aSize) MOZ_OVERRIDE;
virtual bool IsValid() MOZ_OVERRIDE;
private:
RefPtr<BufferTextureClient> mTextureClient;
RefPtr<ImageClient> mCompositable;
};
} // namespace
} // namespace
#endif